Incidental Mutation 'R6007:Ddx20'
ID 479531
Institutional Source Beutler Lab
Gene Symbol Ddx20
Ensembl Gene ENSMUSG00000027905
Gene Name DEAD box helicase 20
Synonyms DEAD (Asp-Glu-Ala-Asp) box polypeptide 20, GEMIN3, dp103
MMRRC Submission 044184-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R6007 (G1)
Quality Score 225.009
Status Validated
Chromosome 3
Chromosomal Location 105585586-105594890 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to C at 105590736 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Isoleucine to Valine at position 227 (I227V)
Ref Sequence ENSEMBL: ENSMUSP00000088176 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000090680] [ENSMUST00000200078]
AlphaFold Q9JJY4
Predicted Effect possibly damaging
Transcript: ENSMUST00000090680
AA Change: I227V

PolyPhen 2 Score 0.680 (Sensitivity: 0.86; Specificity: 0.92)
SMART Domains Protein: ENSMUSP00000088176
Gene: ENSMUSG00000027905
AA Change: I227V

DomainStartEndE-ValueType
low complexity region 20 33 N/A INTRINSIC
DEXDc 82 280 7.47e-44 SMART
HELICc 324 405 2.8e-25 SMART
low complexity region 434 445 N/A INTRINSIC
low complexity region 646 668 N/A INTRINSIC
Predicted Effect noncoding transcript
Transcript: ENSMUST00000132008
Predicted Effect probably benign
Transcript: ENSMUST00000200078
SMART Domains Protein: ENSMUSP00000142675
Gene: ENSMUSG00000027905

DomainStartEndE-ValueType
low complexity region 20 33 N/A INTRINSIC
Pfam:DEAD 87 134 7.6e-5 PFAM
Meta Mutation Damage Score 0.0984 question?
Coding Region Coverage
  • 1x: 99.9%
  • 3x: 99.4%
  • 10x: 97.1%
  • 20x: 90.6%
Validation Efficiency 100% (54/54)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] DEAD box proteins, characterized by the conserved motif Asp-Glu-Ala-Asp (DEAD), are putative RNA helicases. They are implicated in a number of cellular processes involving alteration of RNA secondary structure such as translation initiation, nuclear and mitochondrial splicing, and ribosome and spliceosome assembly. Based on their distribution patterns, some members of this family are believed to be involved in embryogenesis, spermatogenesis, and cellular growth and division. This gene encodes a DEAD box protein, which has an ATPase activity and is a component of the survival of motor neurons (SMN) complex. This protein interacts directly with SMN, the spinal muscular atrophy gene product, and may play a catalytic role in the function of the SMN complex on RNPs. [provided by RefSeq, Jul 2008]
PHENOTYPE: Mice homozygous for a null allele fail to implant and develop past the 2-cell stage. Heterozygous null females are viable, healthy and fertile but show increased ovary weight, a greater number of empty follicles, a prolonged estrous phase, and reduced nocturnal and stress-induced serum ACTH levels. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 53 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
1700003E16Rik G T 6: 83,137,900 (GRCm39) A9S possibly damaging Het
4930407I10Rik C G 15: 81,946,940 (GRCm39) T279S probably benign Het
A830018L16Rik A G 1: 11,582,140 (GRCm39) probably null Het
Abcg5 T G 17: 84,976,392 (GRCm39) I482L probably benign Het
Adgrf5 T A 17: 43,748,462 (GRCm39) D44E probably damaging Het
Amh A G 10: 80,641,305 (GRCm39) N75S probably benign Het
Arl8a T C 1: 135,080,606 (GRCm39) probably null Het
Bpifb4 T C 2: 153,784,480 (GRCm39) Y63H possibly damaging Het
Chd5 A T 4: 152,463,878 (GRCm39) E1449V probably null Het
Chml A G 1: 175,515,594 (GRCm39) V109A probably benign Het
Crybg3 G T 16: 59,374,837 (GRCm39) S2139* probably null Het
Cyp2c68 T C 19: 39,722,780 (GRCm39) D256G probably damaging Het
Dchs2 G T 3: 83,253,534 (GRCm39) V2315L probably damaging Het
Drg2 T C 11: 60,353,451 (GRCm39) V266A possibly damaging Het
Flcn C A 11: 59,683,448 (GRCm39) E576D probably benign Het
Fstl5 T A 3: 76,317,899 (GRCm39) D188E probably damaging Het
Gm14496 A G 2: 181,639,323 (GRCm39) Q471R probably benign Het
Gm43772 T C 5: 66,332,334 (GRCm39) probably benign Het
Gpc6 C T 14: 118,188,673 (GRCm39) H436Y probably damaging Het
Gpr179 A T 11: 97,226,628 (GRCm39) C1842* probably null Het
Ints8 G A 4: 11,208,845 (GRCm39) T934I possibly damaging Het
Iqsec1 G T 6: 90,637,969 (GRCm39) C1050* probably null Het
Larp4b T C 13: 9,218,793 (GRCm39) V510A probably benign Het
Map3k13 A T 16: 21,723,933 (GRCm39) D305V possibly damaging Het
Mc5r A T 18: 68,472,318 (GRCm39) I226F possibly damaging Het
Mme G A 3: 63,250,929 (GRCm39) W323* probably null Het
Mrpl24 A G 3: 87,829,705 (GRCm39) Y97C probably benign Het
Mslnl G A 17: 25,965,749 (GRCm39) S541N probably benign Het
Npepl1 T C 2: 173,962,850 (GRCm39) V412A probably benign Het
Nrg3 T A 14: 39,194,409 (GRCm39) K117* probably null Het
Or11j4 G T 14: 50,630,948 (GRCm39) C245F probably damaging Het
Or4f52 T C 2: 111,061,275 (GRCm39) T288A probably benign Het
Orc2 A T 1: 58,506,851 (GRCm39) M447K probably benign Het
Phf3 A T 1: 30,843,426 (GRCm39) H1844Q probably damaging Het
Plxnc1 T C 10: 94,629,152 (GRCm39) I1541V possibly damaging Het
Rapgef4 T C 2: 72,010,293 (GRCm39) Y284H possibly damaging Het
Rnf180 C A 13: 105,317,957 (GRCm39) probably null Het
Secisbp2 T C 13: 51,819,395 (GRCm39) I325T probably damaging Het
Sertad2 G A 11: 20,597,884 (GRCm39) G27S probably benign Het
Slc4a10 A G 2: 62,099,216 (GRCm39) M625V probably benign Het
Synpo T A 18: 60,736,687 (GRCm39) M420L probably benign Het
Tmem116 A C 5: 121,655,955 (GRCm39) *147C probably null Het
Top2b G A 14: 16,423,779 (GRCm38) probably null Het
Trp53bp2 T A 1: 182,283,305 (GRCm39) C1014S probably damaging Het
Unc5b A G 10: 60,601,139 (GRCm39) F896L probably damaging Het
Vil1 T C 1: 74,459,026 (GRCm39) W177R probably damaging Het
Vmn2r107 A T 17: 20,595,316 (GRCm39) Y623F probably benign Het
Vmn2r86 T C 10: 130,289,535 (GRCm39) Y120C probably damaging Het
Wdr18 A G 10: 79,801,177 (GRCm39) T197A possibly damaging Het
Ylpm1 A G 12: 85,076,064 (GRCm39) M472V probably benign Het
Zfp647 G A 15: 76,796,285 (GRCm39) P125L probably damaging Het
Zfp677 A G 17: 21,617,918 (GRCm39) Y325C probably damaging Het
Zfyve1 A G 12: 83,605,478 (GRCm39) F407S probably damaging Het
Other mutations in Ddx20
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL01583:Ddx20 APN 3 105,593,986 (GRCm39) missense probably damaging 1.00
IGL01832:Ddx20 APN 3 105,586,327 (GRCm39) missense probably damaging 0.99
IGL02072:Ddx20 APN 3 105,587,943 (GRCm39) missense probably damaging 1.00
IGL02821:Ddx20 APN 3 105,586,593 (GRCm39) missense probably benign 0.00
R0520:Ddx20 UTSW 3 105,594,692 (GRCm39) missense probably benign
R0600:Ddx20 UTSW 3 105,586,396 (GRCm39) missense probably damaging 1.00
R1648:Ddx20 UTSW 3 105,586,504 (GRCm39) missense probably benign 0.08
R1817:Ddx20 UTSW 3 105,585,896 (GRCm39) nonsense probably null
R1843:Ddx20 UTSW 3 105,586,398 (GRCm39) missense probably benign 0.00
R1922:Ddx20 UTSW 3 105,585,900 (GRCm39) missense probably damaging 1.00
R1955:Ddx20 UTSW 3 105,586,878 (GRCm39) missense possibly damaging 0.79
R1993:Ddx20 UTSW 3 105,586,660 (GRCm39) nonsense probably null
R2215:Ddx20 UTSW 3 105,587,656 (GRCm39) splice site probably benign
R2241:Ddx20 UTSW 3 105,590,521 (GRCm39) nonsense probably null
R2315:Ddx20 UTSW 3 105,586,015 (GRCm39) missense probably damaging 1.00
R4156:Ddx20 UTSW 3 105,586,249 (GRCm39) missense probably benign 0.41
R4790:Ddx20 UTSW 3 105,590,485 (GRCm39) missense probably benign 0.02
R4962:Ddx20 UTSW 3 105,587,921 (GRCm39) missense possibly damaging 0.95
R5072:Ddx20 UTSW 3 105,590,191 (GRCm39) critical splice donor site probably null
R5361:Ddx20 UTSW 3 105,590,825 (GRCm39) missense probably damaging 0.96
R5622:Ddx20 UTSW 3 105,586,327 (GRCm39) missense probably damaging 0.99
R5936:Ddx20 UTSW 3 105,587,903 (GRCm39) missense possibly damaging 0.96
R6192:Ddx20 UTSW 3 105,586,036 (GRCm39) missense probably benign
R6916:Ddx20 UTSW 3 105,587,929 (GRCm39) missense probably damaging 1.00
R6957:Ddx20 UTSW 3 105,591,626 (GRCm39) missense probably benign 0.30
R6970:Ddx20 UTSW 3 105,587,674 (GRCm39) missense probably damaging 1.00
R8366:Ddx20 UTSW 3 105,594,695 (GRCm39) missense probably benign 0.37
R9176:Ddx20 UTSW 3 105,586,158 (GRCm39) missense probably benign 0.01
R9221:Ddx20 UTSW 3 105,587,685 (GRCm39) nonsense probably null
R9326:Ddx20 UTSW 3 105,591,735 (GRCm39) missense probably damaging 1.00
R9336:Ddx20 UTSW 3 105,585,903 (GRCm39) missense possibly damaging 0.93
Predicted Primers PCR Primer
(F):5'- GCCAACATCTGCTTACTCGC -3'
(R):5'- GGTATGTAACGGTACACTGTAAGG -3'

Sequencing Primer
(F):5'- TGCTTACTCGCAGGTAAAGAG -3'
(R):5'- AAGCATTCCTGAGGTTTGTACAG -3'
Posted On 2017-06-26